(19)

(11)

EP 4 277 753 A1

(12)

(43) Date of publication: 22.11.2023 Bulletin 2023/47 (21) Application number: 21836583.1 (22) Date of filing: 22.12.2021

(51) International Patent Classification (IPC):  B03D 1/008(2006.01) B03D 1/016(2006.01) B03D 1/01(2006.01) (52) Cooperative Patent Classification (CPC): B03D 1/01; B03D 1/008; B03D 1/016; B03D 2201/02; B03D 2203/04; Y02P 10/20 (86) International application number: PCT/EP2021/087367 (87) International publication number: WO 2022/152538 (21.07.2022 Gazette 2022/29)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 12.01.2021 EP 21151244 (71) Applicant: BASF SE 67056 Ludwigshafen am Rhein (DE)	(72) Inventors: BUDEMBERG, Gabriela 12335-010 Jacarei (BR) MICHAILOVSKI, Alexej 67056 Ludwigshafen (DE) SOARES BRAGA, Andre 12335-010 Jacarei (BR) SOBOTKA, Bettina 68623 Lampertheim (DE) MASI NETO, Dorival De 04794-000 Sao Paulo (BR) BAUER, Frederic 67056 Ludwigshafen (DE) (74) Representative: BASF IP Association  BASF SE GBI-C006 67056 Ludwigshafen 67056 Ludwigshafen (DE)